SportChalet.com has the Big Agnes Lost Ranger (15F) bag for $119.96
I picked it up with an insulated pad for $45 (not on their site today).
My hubby tosses and turns a lot, often off his sleeping pad, so he fell in love when he tried a friend's Lost Ranger. We tend to car camp with our Venturing crew (co-ed Boy Scouts). It's light enough (2-lb 12-oz) for a 200+ lb guy to backpack, and with free shipping, I couldn't beat it at $165 for the setup–you could still snag it for about $200 w/a different pad.